Appendix D - Maintenance - Riello Array AR 2000 Installation And Operation Manual

APPENDIX
APPENDIX SHUTDOWN

APPENDIX D - MAINTENANCE

A qualified and adequately trained technician must perform the
inspection as specified in these instructions before each heating
season and at regular intervals.
Servicing, inspection and adjustment must be done by a trained
technician in accordance with all applicable local, state and
national codes. Improper servicing or adjustment of the boiler
could result in equipment damage, injury, and/or dangerous
conditions.
MAINTENANCE / INSPECTION SCHEDULE
Time interval
Verify the cleanliness of the area around the
Annually
boiler
Annually Check the pressure of the hydraulic system
Check vent piping and verify if
Annually
obstructions are present
Check air piping and verify if leaks or
Annually
obstructions are present
Annually Check relief valves
Monthly (follow
local, state, federal
or local authority Verify the condensate discharge system
having jurisdiction
guidelines)
Every two months Test low water cut off
Inspect and test the reset button of low
Every two months
water cut off
Every six months Check all piping (gas and water) for leaks
End of heating
Shut off the boiler
season
Annually * Combustion test and analysis
Verify condition of flue and air system
Annually *
(including Venturi and fan)
Annually * Check ignition electrode
Clean the combustion chamber (including
Annually *
the burner tube)
Annually * Clean condensate discharge
Safety block check, modulation range check,
Annually *
gas valve closing after burner stop
Annually * Check control parameters
Annually * Check for gas piping leak
Annually * Check wiring and connections
Annually * Verify startup
Annually * Verify the flame stability and signal strength
Annually * Check relief valve
Annually * Inspect the burner gasket
(*) Annually or every 2000 hours, whichever occurs first.
Maintenance
leaks or
Gas Leak Inspection
Inspect all gas piping to confirm there are no leaks, including the
pressure ports of the gas valves.
9
DANGER: To verify the gas leaks use a soap solution or a gas
leak detector. Do not use matches, candles, or other methods
that can cause a fire or explosion!
CHECK EXHAUST AND COMBUSTION AIR PIPE SYSTEM
Clear vent systems of any obstructions, corrosion, physical
damage, water stains and rust. Verify the connection between the
individual components.
Verify the outside terminations are clear. Clean the screens and the
louvers if there is any debris.
INSPECTION OF IGNITION ELECTRODE
Verify that the electrode is clean of deposits and use an emery
cloth or other material to remove deposits as required.
0.118" - 0.197"
1
Fig. 67 Inspection of ignition electrode
No.
1 Burner tube
2 Ignition electrode
CHECK WIRING AND CONNECTIONS
Check that all wiring is securely fastened and in good condition
without any cracking or alteration of isolation or presence of the
insulation or corrosion on the metallic contacts.
BURNER GASKET INSPECTION
To ensure the reliability of the boiler/system, the boiler must be
maintained as outlined in this manual and a qualified service
technician must startup and service it at least annually.
This includes a combustion test and the cleaning of the combustion
chamber.
When disassembling the heat exchanger it is crucial to inspect the
Burner Gasket (part number 0CR105917) for damage.
It is a must to replace the burner gasket when servicing and if there
are any signs of wear, deformity or discoloration of the gasket and
in any case not later than every two years.
GAS FILTER SERVICE
In order to ensure smooth operation:
- clean or replace the filter pad of the component annually or
every 2000 hours, whichever occurs first;
- when cleaning or replacing the filter pad, no dirt may
contaminate the clean gas circuit.
50 50
2
Description